Food allergies are associated with heightened levels of disease activity in patients with multiple sclerosis (MS), shows research published online in the Journal of Neurology Neurosurgery & Psychiatry.

As his helmet collided violently with his opponent's shoulder, Luke Kuechly looked like a life-size bobblehead doll. In an instant, the Carolina Panthers star linebacker suffered yet another concussion. His season, and perhaps ...

The Sherpa people of the Himalayas have long been recognized for their unique ability to excel physically in the thin air of higher altitudes. But new research from UBC's Okanagan campus, published last week in the Journal ...

A research expedition to Mount Everest has shed light on the unique physiological basis of adaptations seen in the native Sherpa people, which make them better suited to life at high altitude. This improved understanding, ...

From battling stomach bugs to figuring out where to find deionized water, carrying out a scientific expedition in the Andes is no small feat. "We ended up using pressure cookers to sterilize our research equipment," said ...

Following an extensive analysis of published studies, researchers at the University of Colorado Anschutz Medical Campus have found that while suicide rates are higher at higher altitudes, they are unlikely caused by hypoxia, ...

High altitude is a particularly challenging environment—the terrain is physically challenging and the land has a relatively poor crop yield, so food can be sparse. Most importantly, oxygen levels are lower meaning that ...

Every year, thousands of people travel to high-altitude environments for tourism, adventure-seeking, or to train and compete in various sports. Unfortunately, these trips can be marred by the effects of acute altitude sickness, ...

New research in The FASEB Journal explored why a group of young, healthy adults residing at high altitude lost muscle mass while severely underfed and consuming the same high-protein diet that preserved muscle during weight ...

Altitude

Altitude or height is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, and more). As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context. Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage.

Vertical distance measurements in the "down" direction are commonly referred to as depth.

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